.select_childrenBox {
    margin: 10px 0 0 0;
    /* border: 1px solid red; */
    box-shadow: 0 3px 6px -4px #0000001f, 0 6px 16px #00000014, 0 9px 28px 8px #0000000d;
}


#area {
    height: 300px;
    overflow-y: scroll;
}

.areaClass {
    height: 600px;
}